Ref: ASTROimport-213

Modeling X-Ray Photoionized Plasmas Produced at the Sandia Z-Facility

van Hoof, P. A. M. ; Foord, M. E. ; Heeter, R. F. ; Bailey, J. E. ; Chung, H.-K. ; Cuneo, M. E. ; Goldstein, W. H. ; Jonauskas, V. ; Keenan, F. P. ; Kisielius, R. ; Liedahl, D. A. ; Ramsbottom, C. ; Rose, S. J. ; Springer, P. T. ; Thoe, R. S.

published in Astrophysics and Space Science, 298, pp. 147-153 (2005)

Abstract: In experiments at the high-power Z-facility at Sandia National Laboratory in Albuquerque, New Mexico, we have been able to produce a low density photoionized laboratory plasma of Fe mixed with NaF. The conditions in the experiment allow a meaningful comparison with X-ray emission from astrophysical sources. The charge state distributions of Fe, Na and F are determined in this plasma using high resolution X-ray spectroscopy. Independent measurements of the density and radiation flux indicate unprecedented values for the ionization parameter ξ = 20 25 erg cm s-1 under nearly steady-state conditions. First comparisons of the measured charge state distributions with X-ray photoionization models show reasonable agreement, although many questions remain.

DOI: 10.1007/s10509-005-3925-1
Links: link

The record appears in these collections:
Royal Observatory of Belgium > Astronomy & Astrophysics
Science Articles > Peer Reviewed Articles

 Record created 2016-07-01, last modified 2016-07-01